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Records maintained by KDHE, indicate that of the counties in the planning area, Leavenworth
County has been the recipient of the Abandoned Mine Land Programs with an annualized cost
of $1,144.39. The following Table 3.)))))))) shows the counties in the state that have used this
program to address their abandoned mines subsidence issues. The whole state is reflected to
show a contrast and comparison model.
Table 3.111. Annualized Cost for Abandoned Mine Land Programs by County
Total
County
Annualized
Bourbon $1,782.27
Cherokee $270,223.64
Crawford $158,760.55
Crawford/Ck $21.91
Leavenworth $1,144.39
Wabaunsee $2,929.09
Total $434,861.85
Source: State Hazard Mitigation Plan
The above annualized amounts of historical costs capture only the remediation costs eligible for
KDHE’s programs. The potential for other structural damage and economic impacts exists for
all counties that have subsurface void spaces. Damages will be more isolated in general
compared to other hazards, but future disruptions to transportation and other infrastructure as
well as structural damage are possible.
To analyze vulnerability to land subsidence in the State, the November 2006 KDHE report
entitled “Subsurface Void Space and Sinkhole/Subsidence Area Inventory for the State of
Kansas” was further studied for additional details about land subsidence vulnerability.
In the report, subsidence areas are grouped into three categories as follows:
• Category I: High Risk
• Category II: Medium Risk
• Category III: Low Risk
All documented acres of subsurface void space were classified according to these risk
categories for each of the following causes of void space:
• Lead and Zinc Mines
• Coal Mines
• Limestone Mines
• Gypsum Mines
• Salt Solution Mining
• Rock Salt Mines
• Hydrocarbon Storage Caverns
3.193